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Accrued Expenses and Other Current Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Accrued Expenses and Other Current Liabilities [Abstract]    
Employee compensation and benefits $ 2,362 $ 4,077
External research and development expenses 2,192 1,032
General and administrative professional service expenses 339 419
Other 448 485
Total $ 5,341 $ 6,013